Sciatic nerve impingement, commonly referred to as ‘sciatica’ is a condition often associated with a herniated or ruptured disc. When the injured disc impinges one of the spinal nerves leading to the sciatic nerve, it produces a shock-like pain that travels through the buttocks and down the leg to below the knee. Tingling and numbness are common in this condition. “Sciatica” can occur suddenly, or develop gradually. The pain and symptoms of “sciatica” can be intensified by coughing, sneezing or sitting.